00357    a2200121   4500020001500000082001600015100001800031245007000049260004000119300001800159650004000177650001800217  a0632022299  a631.42bLYN  aLynch, J. M.   aSoil biotechnology bmicrobiological factors in crop productivity  aOxfordbELBS Publishersc1983g1988  ax,191p.c23cm  aSoil fertility ,acidity, alkalinity  aSoil sciences